Figure 8. Cold Start Switch Location

M2/M3 Bradley Fighting Vehicle: Engine Starting/ Charging System
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greater than 180 amperes.

With the STE-M1 still connected, Test Number 82

(GENERATOR VOLTAGE) should be performed next.

Because the vehicle is being

operated in a temperate (normal) climate, the voltage reading should be 28.6 .3

volts.

Step 7.

Test Number 82 revealed a voltage reading of 28.6 .3 volts. Move the

ENGINE ACCESSORY switch (3)(figure 1 on page 8) to the OFF position.

As the

accessory switch was turned off, the STE-M1 shows a voltage drop reading below 28.6

.3 volts.

This voltage drop indicates that the generator voltage regulator

(3)(figure 9 on the following page) is defective and must be replaced.

Step 8.

Disconnect the STE-M1 jack 1A1J14 (7) (figure 1, page 8) of the vehicle

distribution box (5), and replace the generator voltage regulator.

The generator

voltage regulator should be replaced as described in the following subparagraph.